imported from MPlayerXP, dlopen() hack removed, some bugs fixed, interface functions changed to static, info->author field added

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5341 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 65 insertions, 0 deletions

diff --git a/libmpcodecs/ad_roqaudio.c b/libmpcodecs/ad_roqaudio.c
new file mode 100644
index 0000000000..51fc5af14e
--- /dev/null
+++ b/libmpcodecs/ad_roqaudio.c
@@ -0,0 +1,65 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "config.h"
+#include "ad_internal.h"
+#include "../roqav.h"
+//#include "../adpcm.h"
+
+static ad_info_t info = 
+{
+	"Id RoQ File Audio Decoder",
+	"roqaudio",
+	AFM_ROQAUDIO,
+	"Nick Kurshev",
+	"Mike Melanson ???"
+	"RoQA is an internal MPlayer FOURCC"
+};
+
+LIBAD_EXTERN(roqaudio)
+
+static int init(sh_audio_t *sh_audio)
+{
+  sh_audio->channels=sh_audio->wf->nChannels;
+  sh_audio->samplerate=sh_audio->wf->nSamplesPerSec;
+  sh_audio->i_bps = (sh_audio->channels * 22050) / 2;
+  return 1;
+}
+
+static int preinit(sh_audio_t *sh_audio)
+{
+  /* minsize was stored in wf->nBlockAlign by the RoQ demuxer */
+  sh_audio->audio_out_minsize=sh_audio->wf->nBlockAlign;
+  sh_audio->context = roq_decode_audio_init();
+  return 1;
+}
+
+static void uninit(sh_audio_t *sh)
+{
+}
+
+static int control(sh_audio_t *sh,int cmd,void* arg, ...)
+{
+    // TODO!!!
+  return CONTROL_UNKNOWN;
+}
+
+static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
+{
+  static unsigned char *ibuf = NULL;
+  unsigned char header_data[6];
+  int read_len;
+
+// TODO!! FIXME!!!
+  if (!ibuf) ibuf = (unsigned char *)malloc(sh_audio->audio_out_minsize / 2);
+  
+  /* figure out how much data to read */
+  if (demux_read_data(sh_audio->ds, header_data, 6) != 6) return -1; /* EOF */
+  read_len = (header_data[5] << 24) | (header_data[4] << 16) |
+	     (header_data[3] << 8) | header_data[2];
+  read_len += 2;  /* 16-bit arguments */
+  if (demux_read_data(sh_audio->ds, ibuf, read_len) != read_len) return -1;
+  return 2 * roq_decode_audio((unsigned short *)buf, ibuf,
+			     read_len, sh_audio->channels, sh_audio->context);          
+}